bullet deviation


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Bezoar
September 20, 2008, 03:07 AM
how can you predict the deviation between two bullets that have the same profile length and weight when they are launched down range at the same velocity from the same gun?

I know that the all lead bullet must be larger diamter then the copper plated bullet in order to properly seal the barrel, etc. However at what point can you definitely say when the difference in all lead versus fmj or copper plated will make a huge impact in poi versus poa?

say you push an all lead 250 grain RNFP at 900 fps, is a 250 gr JSP of same bullet length and profile at 900 fps going to be hitting at a massively different spot?

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REB
September 20, 2008, 11:43 AM
In my experience the difference is insignificant as long as the bullet weight is close to the same.

Jst1mr
September 20, 2008, 12:53 PM
+1 to REB...differences would show up at extended ranges that you are unlikely to experience w/ typical handgun distances, otherwise little or no difference.

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